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Copyright: 1996 - 2024
    Kirt Blattenberger,


RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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Engineering Crossword Puzzle
March 4, 2012

2012 Crosswords Archive

Visit the Crossword Express website - RF CafeTake a well-deserved break and try your hand at some of these goodies. Every word in the RF Cafe crossword puzzles is specifically related to engineering, mathematics, and science. There are no generic backfill words like many other puzzles give you, so you'll never see a clue asking for the name of a movie star or a mountain on the Russia-China border.

All of these crossword puzzles were created using the fabulous Crossword Express (now called "Magnum Opus") software.

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December 16
December 9
December 2
November 25
November 18
November 11
November 4
October 28
October 21
October 14
October 7
September 30
September 23
September 16
September 9
September 2
August 26
August 19
August 12
August 5
July 29
July 22
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July 1
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April 22
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April 1
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March 11
March 4
February 26
February 19
February 12
February 5
January 29
January 22
January 15
January 8
January 1

Reproduction of this puzzle without the express permission of RF Cafe is prohibited.

Engineering Crossword Puzzle for March 4, 2012 - RF Cafe

1. Effect (named after its discoverer) that is the variation in the width of the base in a BJT due to a variation in the applied base-to-collector
5. Constellation : The twins
10. Last stage in transmitter (abbr., pl.)
11. Vector _______, antenna designer & manufacturer in Melbourne, Australia
14. Chemical symbol for radium
15. Stack command
16. Chemical symbol for manganese
17. Chemical symbol for calcium
18. Data transmission pathway
19. Chemical symbol for neptunium
21. Move in a raster pattern
23. Snail and E are examples of this
25. Adjustment dial
27. Ham's code for "Shall I stop sending?"
28. Device attached to an antenna mast which rotates it so that the antenna can point in different directions
30. Unit of typing speed (abbr.)
32. Chemical symbol for lanthanum
34. Add solder to tip of iron
35. Chemical symbol for iron
36. Small unit of capacitance (abbr.)
38. Boob tube (abbr.)
40. Antenna radiated power measurement (abbr.)
42. Computer "brain" (abbr.)
44. Unit of electrical charge
45. Chemical symbol for francium
47. Chemical symbol for thulium
48. Type of component package (abbr.)
49. Join together
51. Method of self-detection and self-fixing transmission of digital data (abbr.)
53. Below ELF
55. Type of propagation above 30 MHz by means of refraction by highly ionized regions around the Earth's poles
57. Stock symbol for Boeing
58. Chemical symbol for neodymium
59. Chemical symbol for silicon
60. Capacitor type
61. Input intercept point (abbr.)
63. Tie a bundle of wires together
65. Test equipment (abbr.)
66. One port of an amplifier
68. Chemical symbol for silicon
69. Circuit element connecting PCB layers
71. Return-to-Zero (abbr.)
73. International Reply Coupon (abbr.)
75. Balanced-to-unbalanced device
77. One port of an amplifier
79. An ellipse has two of them
81. Thing in a bill of material
83. Possess luminosity
85. Greek letter (micro)
86. Elemental compound used for microwave frequency reference oscillators (abbr.)
87. Chemical symbol for europium
88. Chemical symbol for argon
90. Radio teletype (abbr.)
92. Network department (abbr.)
93. Large radio telescope in Puerto Rico
95. Voltage-controlled oscillator (abbr.)
96. Web's most popular RF site (2 ltrs. + 1 wd.)
97. _____ conductor
1. Type of reconfigurable memory (abbr.)
2. A common battery cell size
3. Type of flip-flop
4. Elemental compound used for microwave frequency reference oscillators (abbr., pl.)
5. First American to orbit the earth - John ...
6. BS__ - the degree held by many RF Cafe visitors
7. Wire diameter unit (abbr.)
8. Charged particles
9. Home state of Los Alamos lab (abbr.)
12. 1.602E-19 Joules
13. Capacitor dielectric type
15. Numbers by which a set is divisible
17. Mr. Gauss' first name
18. He, along with Mr. Savart, developed a law that describes a magnetic field generated by an electric current
20. Physical quantity defined as being the work done per unit time
22. "Calling any amateur radio station"
24. Chemical symbol for argon
25. Chemical symbol for krypton
26. Filter type that blocks frequencies below and above a specified band (abbr.)
29. Switch position
31. 300 kHz to 3 MHz
33. Continuous Tone Coded Squelch System (abbr.)
35. A number series that has each number equal to the sum of the two previous numbers
37. A BPF specification (abbr.)
39. Volt-ohmmeter (abbr.)
40. Science of assuring operation amid dense EM background noise (abbr.)
41. Circuit for firing a radar magnetron (abbr., pl.)
43. Push to Talk (abbr.)
46. Measure of a component's or system's likelihood of not failing
50. Chemical symbol for californium
51. Upper frequency (abbr.)
52. Inductor
54. Crystal face
55. Ticker symbol for Analog Devices
56. Mr. de Forest's first name
57. The "B" in BER
58. Its chemical symbol is N
62. Ratio of circumference to diameter
64. Provider of services for telecommunications systems in Switzerland
67. Chemical symbol for nickel
69. Unit of apparent power (abbr.)
70. Under self-control (prefix)
72. International phonetic alphabet letter "Z"
74. Part of this website's title
75. Chemical symbol for bismuth
76. Chemical symbol for neon
78. Part of a FOR loop
80. Unit used in the measurement of radioactivity was named after a winner of the Nobel Prize in both Physics and Chemistry
82. Converts electrical energy into mechanical energy
84. World Amateur Radio Conference
86. Elemental compound used for microwave frequency reference oscillators (abbr., pl.)
89. Government program to bring electricity to farms (abbr.)
91. Chemical symbol for terbium
92. Current-voltage phase mnemonic
93. Sound frequency in the human hearing range (abbr.)
94. Chemical symbol for californium
95. Abbreviation for peak voltage

See solution below

Engineering Crossword Puzzle Solution for March 4, 2012 - RF Cafe
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